Influence of dose and route of administration on the enantioselective pharmacokinetics of TJ0711 hydrochloride in rats. 2015

Shuping Sun, and Zhaoze Fan, and Lei Hu, and Yiming Ma, and Luqin Si, and Jun Qiu, and Gao Li
School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Department of Biotechnology and Pharmaceutical Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China.

The enantioselective pharmacokinetics of TJ0711 hydrochloride were studied in rats given different doses of rac-TJ0711 hydrochloride via intravenous and oral routes. R- and S-TJ0711 hydrochloride were both rapidly absorbed, and the average AUC0-∞ of R-TJ0711 hydrochloride was greater than that of S-TJ0711 hydrochloride after intragastric administration, with an R/S AUC ratio 1.11 and 1.35 for 30 and 50 mg/kg dose group, respectively. In contrast, the average AUC0-∞ of R-TJ0711 hydrochloride was smaller than that of S-TJ0711 hydrochloride after intravenous injection, with an R/S AUC ratio 0.57 and 0.73 for 10 and 20 mg/kg dose group, respectively. R-TJ0711 hydrochloride plasma half-lives were shorter than those of S-TJ0711 hydrochloride for all groups. AUC0-4h and Cmax between the two enantiomers were significantly different after oral administration of 50 mg/kg dose of the racemate, while no significant differences between the two enantiomers were found for all the pharmacokinetic parameters of the 30 mg/kg dose group. Significant differences between the two enantiomers were detected for nearly all the pharmacokinetic parameters after intravenous administration, except for the VZ of 20 mg/kg dose group. This study suggests that dose and route of administration will influence the enantioselectivity in the pharmacokinetics of TJ0711 hydrochloride in rats.

UI MeSH Term Description Entries
D008297 Male Males
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D000284 Administration, Oral The giving of drugs, chemicals, or other substances by mouth. Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013237 Stereoisomerism The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Molecular Stereochemistry,Stereoisomers,Stereochemistry, Molecular,Stereoisomer
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D017207 Rats, Sprague-Dawley A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company. Holtzman Rat,Rats, Holtzman,Sprague-Dawley Rat,Rats, Sprague Dawley,Holtzman Rats,Rat, Holtzman,Rat, Sprague-Dawley,Sprague Dawley Rat,Sprague Dawley Rats,Sprague-Dawley Rats
D050198 Phenoxypropanolamines Compounds based on a propanolamine attached via an OXYGEN atom to a phenoxy ring. The side chain is one carbon longer than PHENYLETHYLAMINES. Phenoxy-Propanolamines,Phenoxy Propanolamines
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D061605 Administration, Intravenous Delivery of substances through VENIPUNCTURE into the VEINS. Intravenous Administration,Administrations, Intravenous,Intravenous Administrations

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